Adkins believes the strength of City's line-up for last night's Carling Cup win is proof of their desperate need to win a trophy.
Adkins said: "Six of the top seven in the Premier League are in the quarter-finals now, and even the Carling Cup is becoming something of a closed shop for the big clubs.
"A club of City's size now must start winning silverware with all the money that has gone in. All the top clubs are chasing a limited number of trophies.
"They all want, need, to be in Europe and such runs brings in the finance to add better players still. Everyone takes this competition seriously now.
"When was the last time City won any silverware? A long while ago, so they know they have to change that now in the situation they are in."